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"&lt;p&gt;               &lt;/p&gt;&lt;p&gt;  &lt;/p&gt;&lt;p&gt; HAMBURG, Germany (AP) -- Top-seeded Roger Federer struggled for a 7-6 (4), 3-6, 7-5 victory Friday over Florian Mayer and a place in the semifinals of the German Tennis Championships.    &lt;/p&gt;&lt;p&gt; Federer is playing his first tournament since losing in the second round of Wimbledon.    &lt;/p&gt;&lt;p&gt; A four-time champion on the clay courts of Hamburg, Federer needed 2 hours to overtake Mayer. Federer was down 5-1 in the second set, won the next two games but then faltered again. He double-faulted and had two straight forehand errors to give up the set.    &lt;/p&gt;&lt;p&gt; In the third, Federer broke serve twice, only to see the German re-break both times. But with the match on the line, the Swiss former No. 1 raised his game. He broke serve for a 6-5 lead and served out the match at love, hitting a service winner on match point.    &lt;/p&gt;&lt;p&gt; He'll play Argentine qualifier Federico Delbonis, who upset 14th-seeded Fernando Verdasco of Spain 6-7 (5), 7-6 (8), 6-4 to make the semifinals of a tournament for the second time in his career.    &lt;/p&gt;&lt;p&gt; Fabio Fognini of Italy beat Tommy Haas for the second time in two weeks to advance to the semifinals.    &lt;/p&gt;&lt;p&gt; Fognini prevailed 6-2, 6-4 over the second-seeded home favorite. The 12th-seeded Italian is looking for his second straight title after winning his first tournament in Stuttgart, where he beat Haas in the quarterfinals.    &lt;/p&gt;&lt;p&gt; Fognini faces third-seeded Nicolas Almagro of Spain, who came from behind to beat defending champion Juan Monaco of Argentina 4-6, 6-0, 6-3.    &lt;/p&gt;&lt;p&gt; The fifth-seeded Monaco beat Almagro in the Hamburg semifinals last year. Almagro was runner-up in Hamburg two years ago, while Monaco beat Haas for the title last year.    &lt;/p&gt;&lt;p&gt; Delbonis' previous semifinal appearance was two years ago in Stuttgart.    &lt;/p&gt;&lt;p&gt; After fending off a pair of match points in the second set, Delbonis failed to serve out the match at 5-3. He then wasted two match points on Verdasco's serve before the Spaniard double-faulted on the third.  &lt;/p&gt;&lt;p&gt;Copyright 2014 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.      &lt;/p&gt;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.si.com/tennis/2013/07/19/german-tennis-championships>